Non-destructive characterization of archeological Cu-based artifacts from the early metallurgy of southern Portugal

Detalhes bibliográficos
Autor(a) principal: Schiavon, Nicola
Data de Publicação: 2017
Outros Autores: Bottaini, Carlo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10174/23193
https://doi.org/10.1016/j.measurement.2017.05.016
Resumo: Abstract In this study, Monte Carlo (MC) simulations combined with energy dispersive X-ray fluorescence (EDXRF) spectroscopy have been used to characterize nondestructively a collection of Cu-based artifacts recovered from two archeological sites in southern Portugal: (a) the Chalcolithic E.T.A.R. site of Vila Nova de Mil Fontes and (b) the Middle Bronze Age site of Quinta do Estácio 6. The metal artifacts show a multilayered structure made up of three distinct layers: (a) brownish carbonate soil-derived crust, (b) green oxidized corrosion patina, and (c) bulk metal. In order to assess the reliability of the EDXRF-based Monte Carlo simulations to reproduce the composition of the alloy substrate in archeological bronze artifacts without the need to previously remove the superficial corrosion and soil derived patinas, EDXRF analysis together with scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS) was also performed on cleaned and patina-/crust-coated areas of the artifacts. Characterization of the mineralogical composition of the corrosion products in the surface patinas was further determined by means of X-ray diffraction (XRD). Results suggest that the adopted EDXRF/Monte Carlo protocol may represent a safe and fast analytical approach in the quantitative characterization of the bulk chemical composition of Cubased metal artifacts even in the presence of fairly thick corrosion patinas and/or soil-derived encrustations at the surface of the archeological objects.
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spelling Non-destructive characterization of archeological Cu-based artifacts from the early metallurgy of southern PortugalMonte Carlo simulationEDXRFCu-based artifactsSouthern PortugalAbstract In this study, Monte Carlo (MC) simulations combined with energy dispersive X-ray fluorescence (EDXRF) spectroscopy have been used to characterize nondestructively a collection of Cu-based artifacts recovered from two archeological sites in southern Portugal: (a) the Chalcolithic E.T.A.R. site of Vila Nova de Mil Fontes and (b) the Middle Bronze Age site of Quinta do Estácio 6. The metal artifacts show a multilayered structure made up of three distinct layers: (a) brownish carbonate soil-derived crust, (b) green oxidized corrosion patina, and (c) bulk metal. In order to assess the reliability of the EDXRF-based Monte Carlo simulations to reproduce the composition of the alloy substrate in archeological bronze artifacts without the need to previously remove the superficial corrosion and soil derived patinas, EDXRF analysis together with scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS) was also performed on cleaned and patina-/crust-coated areas of the artifacts. Characterization of the mineralogical composition of the corrosion products in the surface patinas was further determined by means of X-ray diffraction (XRD). Results suggest that the adopted EDXRF/Monte Carlo protocol may represent a safe and fast analytical approach in the quantitative characterization of the bulk chemical composition of Cubased metal artifacts even in the presence of fairly thick corrosion patinas and/or soil-derived encrustations at the surface of the archeological objects.2018-05-15T16:37:59Z2018-05-152017-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/23193http://hdl.handle.net/10174/23193https://doi.org/10.1016/j.measurement.2017.05.016engMEASUREMENT, vol. 118, ISSN: 0263-2241schiavon@uevora.ptcarlo@uevora.ptSchiavon, NicolaBottaini, Carloinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T19:15:00Zoai:dspace.uevora.pt:10174/23193Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:14:00.770244Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Non-destructive characterization of archeological Cu-based artifacts from the early metallurgy of southern Portugal
title Non-destructive characterization of archeological Cu-based artifacts from the early metallurgy of southern Portugal
spellingShingle Non-destructive characterization of archeological Cu-based artifacts from the early metallurgy of southern Portugal
Schiavon, Nicola
Monte Carlo simulation
EDXRF
Cu-based artifacts
Southern Portugal
title_short Non-destructive characterization of archeological Cu-based artifacts from the early metallurgy of southern Portugal
title_full Non-destructive characterization of archeological Cu-based artifacts from the early metallurgy of southern Portugal
title_fullStr Non-destructive characterization of archeological Cu-based artifacts from the early metallurgy of southern Portugal
title_full_unstemmed Non-destructive characterization of archeological Cu-based artifacts from the early metallurgy of southern Portugal
title_sort Non-destructive characterization of archeological Cu-based artifacts from the early metallurgy of southern Portugal
author Schiavon, Nicola
author_facet Schiavon, Nicola
Bottaini, Carlo
author_role author
author2 Bottaini, Carlo
author2_role author
dc.contributor.author.fl_str_mv Schiavon, Nicola
Bottaini, Carlo
dc.subject.por.fl_str_mv Monte Carlo simulation
EDXRF
Cu-based artifacts
Southern Portugal
topic Monte Carlo simulation
EDXRF
Cu-based artifacts
Southern Portugal
description Abstract In this study, Monte Carlo (MC) simulations combined with energy dispersive X-ray fluorescence (EDXRF) spectroscopy have been used to characterize nondestructively a collection of Cu-based artifacts recovered from two archeological sites in southern Portugal: (a) the Chalcolithic E.T.A.R. site of Vila Nova de Mil Fontes and (b) the Middle Bronze Age site of Quinta do Estácio 6. The metal artifacts show a multilayered structure made up of three distinct layers: (a) brownish carbonate soil-derived crust, (b) green oxidized corrosion patina, and (c) bulk metal. In order to assess the reliability of the EDXRF-based Monte Carlo simulations to reproduce the composition of the alloy substrate in archeological bronze artifacts without the need to previously remove the superficial corrosion and soil derived patinas, EDXRF analysis together with scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS) was also performed on cleaned and patina-/crust-coated areas of the artifacts. Characterization of the mineralogical composition of the corrosion products in the surface patinas was further determined by means of X-ray diffraction (XRD). Results suggest that the adopted EDXRF/Monte Carlo protocol may represent a safe and fast analytical approach in the quantitative characterization of the bulk chemical composition of Cubased metal artifacts even in the presence of fairly thick corrosion patinas and/or soil-derived encrustations at the surface of the archeological objects.
publishDate 2017
dc.date.none.fl_str_mv 2017-01-01T00:00:00Z
2018-05-15T16:37:59Z
2018-05-15
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10174/23193
http://hdl.handle.net/10174/23193
https://doi.org/10.1016/j.measurement.2017.05.016
url http://hdl.handle.net/10174/23193
https://doi.org/10.1016/j.measurement.2017.05.016
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv MEASUREMENT, vol. 118, ISSN: 0263-2241
schiavon@uevora.pt
carlo@uevora.pt
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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